Meta-optic miniaturized telephoto lens system

Youngjin Kim; Changhyun Kim; Yoonchan Jeong; Byoungho Lee

doi:10.1117/12.2649578

15 March 2023 Meta-optic miniaturized telephoto lens system

Youngjin Kim, Changhyun Kim, Yoonchan Jeong, Byoungho Lee

Proceedings Volume 12432, High Contrast Metastructures XII; 1243207 (2023) https://doi.org/10.1117/12.2649578
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

A telephoto lens, which has a long effective focal length to obtain highly magnified images of objects, has been utilized in various imaging systems such as camera modules and astronomical telescopes. Nevertheless, the wasted space between the lens and the image sensor due to the long focal length and the huge volume of refractive lenses pose a major hurdle for system miniaturization. In this work, we propose a novel type of telephoto lens breaking the trade-off between system volume and magnification factor by arranging multiple metasurfaces on a glass substrate in a horizontal direction. This configuration obtains vastly extended optical path length leading to a high magnification factor within a downsized volume.

Conference Presentation

Citation Download Citation

Youngjin Kim, Changhyun Kim, Yoonchan Jeong, and Byoungho Lee "Meta-optic miniaturized telephoto lens system", Proc. SPIE 12432, High Contrast Metastructures XII, 1243207 (15 March 2023); https://doi.org/10.1117/12.2649578

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